// 
//  Copyright (c) 2009, Christoph Heindl
//  All rights reserved.
// 
//  Redistribution and use in source and binary forms, with or without modification, are 
//  permitted provided that the following conditions are met:
// 
//  Redistributions of source code must retain the above copyright notice, this list of 
//  conditions and the following disclaimer. 
//  Redistributions in binary form must reproduce the above copyright notice, this list 
//  of conditions and the following disclaimer in the documentation and/or other materials 
//  provided with the distribution. 
//  Neither the name Christoph Heindl nor the names of its contributors may be used to endorse 
//  or promote products derived from this software without specific prior written permission.
// 
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS 
//  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
//  AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
//  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
//  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
//  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 
//  IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 
//  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 

using System;
using System.Collections.Generic;
using System.Text;

namespace Accelerators
{
  /// <summary>
  /// Generic pair structure
  /// </summary>
  public class Pair<T,U>
	{
    /// <summary>
    /// Construct from first and second.
    /// </summary>
    public Pair(T t, U u)
    {
      _t = t;
      _u = u;
    }

    /// <value>
    /// Access first
    /// </value>
    public T First
    {
      get { return _t; }
      set { _t = value; }
    }

    /// <value>
    /// Access second 
    /// </value>
    public U Second
    {
      get { return _u; }
      set { _u = value; }
    }

    /// <summary>
    /// Convert pair to string
    /// </summary>
    public override string ToString() {
      return string.Format("<{0},{1}>", _t, _u);
    }

    /// <summary>
    /// Convert pair to KeyValuePair.
    /// </summary>
    public KeyValuePair<T,U> ToKeyValuePair() {
      return new KeyValuePair<T, U>(_t, _u);
    }

    private T _t;
    private U _u;
	}
}
